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  3. a local shoe company claims that the average yearl

A local shoe company claims that the average yearly salary of its workers is $19,800. The union...

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Statistics

Alocal shoe company claims that the average yearly salary of itsworkers is $19,800. The union believes that the average salary ismuch less. A random sample of 64 employees shows their averagesalary to be $19,400 with a sample standard deviation of $800. Usea 5% (alpha = 0.05) level of significance to test the company’sclaim. Provide statistical evidence to support your findings.

Answer & Explanation Solved by verified expert
3.7 Ratings (638 Votes)
The sample mean is and the sample standard deviation is s 800 and the sample sizeis n 641 Null and Alternative HypothesesThe following null and alternative hypotheses need to betestedHo 19800 Average yearly salary of its workers is19800Ha    See Answer
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